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, Multiple Wink Lamp. No. 242,938. Patented June 14, |881.

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O. KNIFE. y Multiple 'Wick Lamp. No. 242,938. r Patented June 14,1881.

UNITED STATES PATENT OFFICE.y

OSCAR KNIPE, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO `SAMUEL L. FOX, OF SAME PLACE.

l MULTIPLE-WICK LAMP.

SPECIFICATION forming part of Letters Patent No. 242,913.8, dated June 14, 1881. Application lerl March 19, 1881. (No model.)

mfull, clear, and exact description of the invention, reference being had to the accompanying drawings, which form part of this specification, in which- Figure 1 is a vertical longitudinal section 5 Fig.2, a side elevation; Fig.3,avertical transverse section; and Fig. 4, a plan, partly in section.

My invention has relation to that class of lamps in which multiple concentric wicks are employed; and my improvements have for their object to provide a lamp of this class which shall be specially adapted to the employment of hydrocarbon iiuid as the illuminator; and to use in connection with magic lanterns, where a iiame of great intensity and highest 'purity and whiteness is essential for the production ofthe best ed'ects.

My improvements consist in the peculiar construction and combination of parts hereinafter fully set forth, having reference, principally, to the following points: first, to the combination of two concentric wick-tubes of unequal lengths and havin gindependentnieans for separately adjusting thewicks, said means of adjustment being in different horizontal planes 5 second, to the combination of two separate and independent oil-reservoirs, one superposed upon the other, each having its own wick-tube and wick-adjusters, said wick-tubes being concentric, and having a draft tube or channel between them, as well as a central and external draft. i

Referring to the accompanyingdrawings,A and B indicate two separate and independent oil or fluid reservoirs, theformer being sustained above the latter, leaving a clear space, C, between them by means of columns D D. Each reservoir is provided with an annular wick-tube, E and F, respectively, said tubes being concentric with each other, of unequal diameters and lengths and terminating at the top in the same plane. 5o

G represents the draft-space between said tubes, which receives its supply of' airvthrough the space G between the reservoirs A B.

H Vand I represent the wick adj usters,

whereby the wicks Kand L may be separately adjusted. Said ad j usters are shown in the form of ratchet-wheels; but any other usual or convenient equivalent may be substituted therefor. E

Each of the reservoirs has its own illing- 6o neck, (shown at a and b', respectively.)

M is a perforated dome, through which air passes to supply. the exterior wick, the draft being deliected by a conical cowl, N, havinga horizontal iiange, n. 6

The reservoirs have each an offset, (shown at a2 b2,) affording spaces for the reception ofthe ratchet-wheels or wick-adjusters. These latter, being in different planes, permit the employment of seamless wicks, whereas if they 7o were in the same plane the outer wick would necessarily have to be split for the passage of the shaft of the ratchet or adjuster for the inner wick. 4

I have described the wick-tubes as heilig ovaliforln, and this form I prefer; but it is obvious that they may be a true circle, if desired, and the other features of my invention be still retained. Using the ovaliform wicktubes, in practice the lamp is set so that the 8o smaller axes of the oval is parallel with the front of the lamp and opposite to the adjustin g-wheels.

The lamp is designed for use in connection with a suitable chimney of glass, metal, or other material, as may be required.

What I claim as myinvention is as follows:

1. In a multiple-wick lamp or burner, the combination of two concentric wick-tubes of unequal len gt-hs, and having ratchets or equiv- 9o alent means for separately adjusting the wicks of said tubes, said means of adjustment being in different planes, substantially as shown and set forth.

2. A multiple-wick lamp, comprising, in cornbination, the following parts: two separate and independent reservoirs, one superposed In testimony that I claim the foregoing I on the other, two concentric wick-tubes of have hereunto set my hand this 18th dey of unequal lengths, terminating at the top in the March, 1881.

same plane, with a draft-space between them, OSCAR KN IPE. 5 and independent means for separately edjust- Witnesses:

ing the Wicks of said tubes, substantially as WALTER S. GIBSON,

shown and set forth. M. D. OONNOLLY. 

